Method for the instantaneous setting of glue between surfaces



` April 12,1927. 1,624,691

G. J, THOMA METHD FOR THE INSTANTANEOUS SETTING OF GLUE BETWEEN SURFACES Filed July 26 1926 LA, f Z 3 Patented Apr. 12, 1927.

AGEORGE J. THOMA, orv PORTLAND, OREGON'.

ICE.

METHOD -EOR THE INsTANTAEEoUssETTINGf OEGLUE BETWEEN sUErAoEs.

The object of my invention, consists primarily, and used by mein the 'repairing of furniture, wherein blisters, or .raised surfaces, occur upon the finished surface of veneered furniture. The vesicle to be repaired generally occurs between the laminae, the liner upper layers of veneer. Heretofore it has been the custom where these blisters occur in any quantity to resurface the blistered surface which was not only expensive in time but in material as well. In my ynew and improved method I accomplish the repairing ofthese blisters without the aid of vclamps or the expense lof any considerable time and wherein a minimum amount of labor and material is required.

I am aware that heretofore pressure or heat has been used externally in effecting the quick setting of glued surfaces, but I am not aware that the same vhas been. effected quickly wherein the surface can be immediately reiinished as may be done by my treatment and placed in stock or use.

A still further object of my invention, consistsin providing a method wherein and whereby glued surfaces of substantial area may be glued together and finished almost instantly by the application of artificial heat in substantial quantity andthe application of pressure during the application of the heated surface to one or both ofthe surfaces to be glued together.

With these and incidental obj ects in View, the invention consists in certain novel features of application and methods of pros.`

cedure, the essential elements of which are set forth in the appended claims, and a preferred form of embodiment of which is hereinafter shown with reference to the drawings which accompany and form a part of this specification.

In the drawings:-

Fig. 1 is a perspective view of a table top, a block o-f veneered material consisting pri7 marily of a core and the veneered surface.

Fig. 2 is a sectional view, showing andl Application iled .T'uly- 26,

19,26. semina 125,115.4

glued 4tota second layer 2,l the tufo layers usually' runy in opposite directions. a The' ycorer orfbas'e'bf the built up product is shown' atl 3. The vesicle is shown at 4 and generally occurs upon the upper surfacel. The slit that I-form in the raised surface is shown at 5. lThe tool used for working in the glue between the laminas is shown at 6, and is so made that aflexibl'e point is provided to facilitate the work.

I/Vhere too much time has not elapsed or a fair quantity of thedried glue remains disposed under the blister, I have accomplished satisfactory results bythe application byl my heated iron and by working the blister down to a truesurface. without slitting the raised surface, find that the same may be retained in place by the simultaneous application of heat and pressure. At other times I get best lresults by the placing of an additional amount lof gluein the space created by the raised blister, and'then reduce the blister by working the raised surface down to a true surface by the simultaneous application lof heat and pressure.

I have found best results are Obtained l when I slit the raised surface at or near the vbase of the raise, as is shown in 3 and a quantity of liquid` glue into the space disposed between the laminas after whichv I apply a heated iron to the surface yand press the two surfaces to be united until complete contact is formedl between the two veneer surfaces.- The iron should be su-iciently heated to cause an instantaneous setting of the glue. but not hot enough to Scorch', or burn, the wood surfaces. Veneered surfaces treated inV this manner wherein heat and pressure are applied simultaneously not only corrects the defectbut I have' applied this method to a very large number of defects ofl this character` and the method permanently'corrects the defect. y

l/Vhile I have here described my method in its application to the repairing of veneered surfaces the-same may be used with v good results in the repairing of damaged edges or indented surfaces, lor in the repair of damaged edges, where heat is simultaneously -applied with the application of pressure.

While this form of treatment in its spethe exact form of application hereinv described as the same is susceptible to other forms of application,y all coming Within the scope of the claims Which follow:

Vliat I claim iszl. A method of repairing blisters on Veneered furniture consisting of slitting the blister at the base, the placing of glue between the raised surface and the next surface disposed thereto and the simultaneous application of lieat and pressure during the setting of the glue.

2. A method of repairing blisters formed upon veneers consisting of slitting the blister, applying glue material through'tlie slit and the pressing of the blister int-o place with a `heated element to intensify the set- 20 ting of the glue.

i GEORGE J'. THoMA. 

